### Home > CC3MN > Chapter 10 > Lesson 10.2.3 > Problem 10-71

10-71.

Rianna thinks that if and if

*, then*

*. Is she correct?*

If you add the same amount to both sides of the equals sign, then the equation remains true.

Adding to one side is the same as adding

*to the other because*

*and*

*are equal.*

Therefore, the equation